I would like to ask friends, can this valve be used with your steam pipe?
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The company purchased a batch of electric valves for use as cut-off valves and used them on steam valves in reactors. However, they have been broken recently and have great resistance (remove the manual ones). I would like to ask if they can be used on steam pipelines. Thank you!
When purchasing valves, did you not provide the valve technical conditions to the valve manufacturer? You should contact the valve manufacturer about this.
I can't see clearly in the picture, but the steam pipelines are probably using ordinary gate valves. Is the electric head added for convenience of switching on and off or for quick switching? If it is used for a quick switch, it cannot be removed casually. If it is just for the convenience of switching, remove the electric head and see if the torque is too high? If the torque is too large and manual opening is too laborious, a bevel gear transmission mechanism may be needed.
It’s hard to say since you don’t have the valve type and process parameters.
I have never seen this kind of valve before. Choose a good quality valve and try it.
The picture is of an electric ball valve. Are you talking about a broken electric head or a broken valve body? If the electric head is broken, replace it. The electric head only provides execution power and has little to do with the medium used.
What are the specific parameters, temperature, pressure! Can this valve meet these operating conditions? The large torque should be a design calculation or processing problem.
Electric ball valves can be used on steam pipelines. What our company does more often is equipped with IC steam prepayment systems. Generally, electric hard-sealed butterfly valves are chosen for large-diameter valves, electric ball valves are chosen for small-diameter valves, and PPL seals are chosen for temperatures below 230°C. Sometimes If the temperature is relatively high, choose a metal hard seal, because generally when using steam, the medium temperature is basically higher than 120°C. At this time, heat transfer is considered to ensure that the actuator is not affected by the medium temperature. A bracket should be added between the valve body and the actuator. What do you mean by the valve on site having relatively large resistance? Can't the valve be fully opened and fully closed when powered? In this case, it should be that the actuator is too small, and the output torque is relatively small, which cannot guarantee the normal operation of the valve. If it cannot be opened and closed individually, if it is a new pipe, you can check whether there is stuck welding slag. Basically, there are no other problems. As long as the actuator is not broken and the valve is difficult to open or close, it is basically that the actuator is too small or the valve core is stuck with foreign matter.
The picture shows an electric flange ball valve. If it is used on a steam pipeline, can it withstand the temperature? If the temperature is high, a soft-sealed ball valve cannot be used. I need to use a hard seal.